| Impact ID | 8225 |
| Impact Type | Commerce |
| Study Type | Anecdotal |
| Study Location | N/A |
| Impact Description | In Ohio and Tennessee where river beds are dredged for sand and gravel for use as aggregation material in cement, the high densities of Corbicula fluminea have incorporated themselves in the cement, burrowing to the surface as the cement starts to set and weakening the structure. |
| Reference | 12216 |
| Cost | |
| Location | |